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Coupling
US 2,023,428 A
Filed
: 07/06/1934
Issued
: 12/10/1935
Est. Priority Date
: 07/06/1934
Status: Expired due to Term
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Current Assignee
Frederick C. Liebhardt
Original Assignee
Frederick C. Liebhardt
Inventors
Liebhardt, Frederick C.
Application Number
US02/734,012
Time in Patent Office
522 Days
Field of Search
US Class Current
285/110
CPC Class Codes
F16L 37/0842
by means of a ring which is...
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